PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 380

• Manufacturer Part Number: PIC16F872-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Package: 28SSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PICmicro MID-RANGE MCU FAMILY
20.11
DS31020A-page 20-10
CMCON
VRCON
INTCON
PIR
PIE
Legend: x = unknown, - = unimplemented locations read as '0'.
Note 1: The position of this bit is device dependent.
Name
2: These bits can also be named GPIE and GPIF.
Shaded cells are not used for Comparator Module.
Analog Input Connection Considerations
C2OUT
VREN
Bit 7
Legend
C
V
I
R
R
V
GIE
LEAKAGE
T
A
PIN
IC
S
V
R
AIN
S
A simplified circuit for an analog input is shown in
nected to a digital output, they have reverse biased diodes to V
therefore, must be between V
than 0.6V in either direction, one of the diodes is forward biased and a latch-up may occur. A
maximum source impedance of 10 k is recommended for the analog sources.
Figure 20-4: Analog Input Model
Table 20-1: Registers Associated with Comparator Module
C1OUT
VROE
PEIE
Bit 6
A
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to various junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
IN
C
5 pF
PIN
Bit 5
VRR
T0IE
—
INTE
Bit 4
—
—
CMIF
CMIE
RBIE
(1)
(1)
V
Bit 3
VR3
SS
CIS
DD
V
V
and V
(2)
T
T
= 0.6V
= 0.6V
Bit 2
CM2
DD
VR2
T0IF
. If the input voltage deviates from this range by more
INTF
Bit 1
CM1
VR1
I
V
LEAKAGE
Figure
500 nA
SS
RBIF
Bit 0
CM0
VR0
R
20-4. Since the analog pins are con-
C
(2)
< 10k
DD
00-- 0000
000- 0000
0000 000x
Value on
1997 Microchip Technology Inc.
POR,
and V
BOR
0
0
SS
. The analog input
00-- 0000
000- 0000
0000 000x
Value on
All Other
Resets
0
0